Quote:
Originally Posted by drmurat
yes I guess that the number 6 x 10 ^ (900.000.000.000) + 18 x 10 ^ ( 450.000.000.000) + 1 also is not belong to twin prime number

Yes, that is true, since if N denotes your number then N+2 is divisible by 3 and N2 is divisible by 107.